BIOS for the Acer Aspire One 533 netbook, named AO533, in a 795 KB RAR archive. The name gives no version, board code or chip capacity, so the contents and the flash chip should be checked before use. A raw image can be written straight to the SPI chip to recover a board with corrupted firmware, either with a test clip or after desoldering. Save a full read of the original chip first, and confirm the image size matches before programming.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →